Accessibility in Jabberblocky

Last updated: June 17, 2026

This page walks through Jabberblocky's accessibility features.

Summary

A High Contrast, single-color display mode.
Text and interface contrast meet WCAG 2.2 AA
The interface follows your device's Light or Dark appearance
No information conveyed by color alone.
Animation is reduced when your device's Reduce Motion setting is on

Color and Contrast

High Contrast mode

Jabberblocky includes a High Contrast display mode that renders the board and pieces using a single color in light and dark steps. Two single-color options are available: Sapphire (blue) and Amethyst (purple). The mode is designed so that filled and empty cells, piece edges, and line boundaries remain distinguishable for players with color-vision deficiencies or low vision.

You can turn it on in Settings › Appearance › Color Palette by selecting High Contrast. Switching between the standard palette and High Contrast does not change any of your other settings.

Jabberblocky Settings screen on iPhone. Under Appearance, Color Palette is set to High Contrast; the picker shows two single-color options — Sapphire (blue) and Amethyst (purple) — with Amethyst selected, and a preview board rendered in purple steps below. — Settings › Appearance › Color Palette, with High Contrast selected.

A focused Jabberblocky board in High Contrast mode, rendered in Sapphire blue. Filled cells use a darker blue with visible edges; empty cells are pale, so filled and empty squares stay distinguishable without relying on hue. — The game board in High Contrast mode.

WCAG 2.2 contrast standards

Text and interface elements are designed to meet the WCAG 2.2 AA contrast standard (a ratio of at least 4.5:1 for text against its background). The High Contrast mode's color steps are additionally checked so that board elements remain distinguishable when simulated for common forms of color-vision deficiency. This corresponds to Apple's "Sufficient Contrast" support.

Light and Dark interface

On a new installation, Jabberblocky matches your device's system appearance: if your device is set to Dark Mode, the game opens with a dark interface; otherwise it opens light. You can also choose a different look at any time in Settings › Appearance, and your explicit choice is kept. This corresponds to Apple's "Dark Interface" support.

Jabberblocky with a dark interface.

Color is never the only cue

No gameplay information depends on color alone. Whether a piece can be placed is shown by position: a piece that is dropped on an invalid location returns to the tray rather than being placed. Filled and empty cells differ in fill and border, not only in hue, and piece identity is conveyed by shape. This corresponds to Apple's "Differentiate Without Color Alone" support.

Motion and Visual Intensity

Reduced motion

When your device's Reduce Motion setting is turned on, Jabberblocky reduces or removes non-essential animation. This includes piece-movement animations, the return animation when a piece cannot be placed, and celebratory effects. The setting is read from your device; there is no separate switch inside the game. This corresponds to Apple's "Reduced Motion" support.

Flashing and photosensitivity

Jabberblocky's line-clear effects are designed to avoid rapid flashing. We believe the visual effects that play when you clear lines meet the recognized standard for flash safety — WCAG 2.2 success criterion 2.3.1 (Three Flashes or Below Threshold).

Touch Targets

Interactive controls are sized for touch. Sizing of every control is an area of ongoing review.

Sound

Sound is optional in Jabberblocky, and all information needed to play is shown on screen. Placements, line clears, scoring, and the end of a game are all communicated visually. You can turn all sound off with the audio toggle on the Audio screen, and you can turn vibration (haptic feedback) on or off in Settings. The game does not play audio until you take an action.

Jabberblocky Settings screen on iPhone showing the Gameplay section, where the Vibration toggle is turned on. — Vibration is turned on or off in Settings.

Using Your Device's Accessibility Settings

Two of the features above are controlled by your device rather than inside the game. To use them, change the setting on your device and then open Jabberblocky:

Reduce Motion — iOS: Settings › Accessibility › Motion › Reduce Motion. Android: Settings › Accessibility › Remove animations (wording varies by device).
Dark appearance — iOS: Settings › Display & Brightness › Dark. Android: Settings › Display › Dark theme.

Feedback

If you have questions about Jabberblocky accessibility or feedback to help us improve it, please contact us at support@jabberwockystudios.co.

Changes to This Page

We may update this page as the app's accessibility features change. When we do, we will update the Last updated date above.